Global Patent Index - EP 0321430 A1

EP 0321430 A1 19890621 - Method for producing a tubular compact and apparatus for carrying out said method.

Title (en)

Method for producing a tubular compact and apparatus for carrying out said method.

Title (de)

Verfahren zur Herstellung eines rohrförmigen kompaktierten Gegenstands und Anordnung für die Durchführung des Verfahrens.

Title (fr)

Méthode de fabrication pour un comprimé tubulaire et un appareil pour sa mise en oeuvre.

Publication

EP 0321430 A1 19890621 (EN)

Application

EP 88850424 A 19881215

Priority

SE 8705053 A 19871218

Abstract (en)

A tubular compact (14) obtained by compacting a powder is applied with one circumferential surface (16) at a minimum distance required for said application, from an abutment surface (15) corresponding to said one circumferential surface (16). The space between said one circumferential surface (16) and the abutment surface (15) is evacuated, such that the compact (14), while undergoing a certain deformation to bridge said space, is sucked against the abutment surface (15) so as to be firmly retained against it. A device for carrying out the above comprises a support means (1) having an abutment surface (15) corresponding to one circumferential surface (16) of the compact (14), at least one opening (2) provided in the abutment surface (15) of the support means (1), and a channel which is provided in the support means (1) and which at one end communicates with the opening (2) and at the other end is connectible (11, 12) to a vacuum source (13), such that an evacuation, brought about by the vacuum source (13) through the channel and the opening (2), of the space between the abutment surface (15) and the compact (16) sucks the latter into a position of firm retention against the abutment surface (15).

IPC 1-7

B22F 3/00; B23Q 3/08; B24B 5/02

IPC 8 full level

B30B 5/00 (2006.01); B22F 3/02 (2006.01); B22F 3/04 (2006.01); B22F 3/10 (2006.01); B22F 5/00 (2006.01); B22F 5/12 (2006.01); B23B 31/30 (2006.01); B28B 21/36 (2006.01)

CPC (source: EP KR US)

B22F 3/02 (2013.01 - EP KR US); B22F 3/04 (2013.01 - EP US); B23B 31/305 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0321430 A1 19890621; EP 0321430 B1 19920729; DE 3873293 D1 19920903; DE 3873293 T2 19930218; ES 2034397 T3 19930401; JP H01268801 A 19891026; KR 890009508 A 19890802; SE 460955 B 19891211; SE 8705053 D0 19871218; SE 8705053 L 19890619; US 4880598 A 19891114

DOCDB simple family (application)

EP 88850424 A 19881215; DE 3873293 T 19881215; ES 88850424 T 19881215; JP 32034488 A 19881219; KR 880016933 A 19881219; SE 8705053 A 19871218; US 28456288 A 19881215